These members of the
struct lconv structure specify how to print
the sign (if any) of a monetary value.
These are strings used to indicate positive (or zero) and negative monetary quantities, respectively.
In the standard ‘C’ locale, both of these members have a value of
"" (the empty string), meaning “unspecified”.
The ISO standard doesn’t say what to do when you find this value; we
positive_sign as you find it, even if it is
empty. For a negative value, print
negative_sign as you find it
unless both it and
positive_sign are empty, in which case print
‘-’ instead. (Failing to indicate the sign at all seems rather
These members are small integers that indicate how to
position the sign for nonnegative and negative monetary quantities,
respectively. (The string used by the sign is what was specified with
negative_sign.) The possible values are
The currency symbol and quantity should be surrounded by parentheses.
Print the sign string before the quantity and currency symbol.
Print the sign string after the quantity and currency symbol.
Print the sign string right before the currency symbol.
Print the sign string right after the currency symbol.
“Unspecified”. Both members have this value in the standard ‘C’ locale.
The ISO standard doesn’t say what you should do when the value is
CHAR_MAX. We recommend you print the sign after the currency
The members with the
int_ prefix apply to the
int_curr_symbol while the other two apply to